[2] In sharp contrast to print media, television was the medium for critical accounts of Australia's role in the war in Vietnam.

Street found that the chief magistrate, Murray Farquhar, had used the Premier's name to get the Humphreys case dismissed, but exonerated Wran of any involvement.

Together with articles in The Courier-Mail, a 1987 Four Corners story entitled "The Moonlight State" reported on police corruption in Queensland.

A 2006 episode titled "Greenhouse Mafia" exposed the influence of the fossil fuel lobby on Australian climate change policy.

[6] "The Code of Silence", which aired 11 May 2009, was an investigative report on the attitudes towards and the treatment of women by National Rugby League players.

[3] On 8 March 2010, a program was aired shedding light on ex-members of the controversial Church of Scientology, many speaking of abuse and other forms of inhumane treatment, for example coerced abortions and disconnection.

[10][11] The program was of note due to Church spokesperson Tommy Davis "categorically [denying]" all allegations put forward by ex-members.

[18] On 26 July 2016, Four Corners aired graphic footage of systematic physical and verbal abuse of young Indigenous children and teenagers in the Northern Territory at Don Dale Youth Detention Centre.

The episode caused outrage from the Australian public, prompting Prime Minister Malcolm Turnbull to announce a Royal Commission into the abuse occurring in the Northern Territory.

[23][24] In May 2021, ABC managing director, David Anderson delayed a Four Corners story about the relationship between Prime Minister Scott Morrison and a supporter of QAnon,[25] in spite of "(a) lot of detail is already in the public domain".